Concrete rear-planting anchoring rib construction method

Abstract

The invention relates to a concrete rear-planting anchoring rib construction method and belongs to the building engineering technology field. In the invention, a rear-planting anchoring rib guide pipeis pre-embedded in a precast concrete structure so as to guarantee that later-period anchoring rib hole making can avoid the influence of a reinforcing steel bar; anchoring rib hole making becomes convenient; a hole making formation rate and construction efficiency are increased; the influence on the precast concrete structure is reduced; and anchoring rib construction quality is guaranteed. Compared with a direct pre-embedded insertion rib, the influence on precast concrete template manufacturing, installation and dismounting can be reduced, which is good for the rapid construction of the precast concrete structure. Compared with a conventional rear-planting anchoring rib construction method, by using the construction method of the invention, a rear-planting anchoring rib hole making process can be ensured to effectively avoid the reinforcing steel bars in the precast concrete structure, construction efficiency is increased, unnecessary damages to the precast concrete structure are avoided, construction quality is easy to control and construction is convenient. And simultaneously, the method can be extended into other hole drilling construction projects in reinforced concrete, ausage range is enlarged, an application prospect is good, and good economic and social benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a construction method for concrete post-planting anchor bars. Background technique [0002] In the field of water conservancy and hydropower projects, some hydraulic structures are often constructed in several phases, and even different construction phases undertake different functions, such as the reconstruction or sealing of diversion tunnels - flood discharge bottom holes, the reconstruction of diversion open channels - spillways, etc. In the later reconstruction, in order to ensure the bonding quality with the previously constructed concrete, it is often necessary to drill holes and plant anchor bars on the concrete surface; Pre-embedding during concrete pouring has a great impact on the selection, installation and removal of column and beam formwork, and is not conducive to the quality control of the appearance of the concrete structure, affectin...

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Problems solved by technology

[0003] For the post-planting of reinforced concrete, it is usually affected by the internal reinforcement of the concrete. During the hole-making process of post-planting anchor bars, the steel bars are often punched, resulting in multiple holes. The porosity rate is low and the construction efficiency is low. At the same time, the concrete structure It also causes unnecessary damage, and the construction quality is not easy to control

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